Wednesday, March 4, 2015

Cost of Ocean Acidification (Priscila Ferreira)

Oceans have absorbed a considerable part of the carbon dioxide released by humans over the last 200 years and the impacts of this acidification on marine life remain invisible. It is estimated that by the end of this century the damages will be vast. Since these changes in the ocean are still difficult to comprehend and ocean acidification is a very young field, the U.N. Convention on Biological Diversity released a report to alert and make governments aware of the potential of the various threats, with an estimated the cost of $1 trillion annually. It is looking only at protecting lost ecosystem, such as tropical reefs. The researchers gave context to authorities try to avoid the worst scenario, starting to work on areas that are possible to change now.

Corallines, corals, goldies, reef and surface at
 Halahi Reef, Red Sea, Egypt

To determine the impact of ocean acidification, it is necessary to consider societal implications, loss of ecosystem services or policy, and how organisms physiologically respond. Fish have more flexibility to adapt, but the time might not necessarily be enough for species to adjust. As another example, looking at tropical reefs, their destruction can lead to decreased food security, income loss, and shoreline damage. Therefore negative impacts represent a direct threat not only on the ocean, but also to human populations. For all predictions made, they are not considering other factors that occur in oceans worldwide, like their warming. Because of this, it is necessary to focus on goals that can be implemented right away, like limiting construction debris, sewage and pollution levels.
The ocean acidification is related to Principles of Ecology since this topic is not only about how the ocean and their marine life are affected, but also how the humans interact with them, contributing to this problem or helping to solve it. This relation is on one hand about the possible loss of biodiversity and extinction of many different species, and on the other hand about their preservation.
In my opinion, the ocean acidification is a big problem that might be ignored because people cannot see it directly, but it exists and is becoming worse over the years. The effects will start on some calcifying species and then, once these species are at risk, the entire food web may also be at risk. Besides this, people that have food from the ocean as their primary source of protein and as a source of income will suffer too. The changes need to start as soon as possible before the damage will be so vast that it will take thousands of years to be repaired.


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4 comments:

  1. I like your comment about how people often cannot see the effects of ocean acidification directly so they may ignore it. I feel like this is the case for many of human impacts we have on the ocean. People don't realize the effects we are having on the ocean and the species in it. Good Job!

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  2. I like your comment about how people often cannot see the effects of ocean acidification directly so they may ignore it. I feel like this is the case for many of human impacts we have on the ocean. People don't realize the effects we are having on the ocean and the species in it. Good Job!

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  3. Good post. I how well written and comprehensive your post was. I also liked how you mentioned that coastlines and coastal areas will be more heavily damaged. It's kind of ironic how, knowing this, people inland are still required to subsidize part of their losses. I also liked how you mentioned that, if the extent of predicted damage does come to be, then there won't be a quick fix, but we'll be dealing with the consequences for years to come.

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  4. Yes, I totally agree with you. Rapid ocean acidification caused close attention all over the world, people are worried about the change in the next few years. We need to save the ocean in order to have enough fish to eat. If not, ocean acidification will have a serious impact on the marine food chain, biodiversity and fishery.

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